Agrilus mimicus, 2019

Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, Zootaxa 4564 (2), pp. 449-469 : 455-457

Agrilus mimicus sp. nov.

( Fig. 4A )

Description of holotype. Body length: 5.1 mm. BODY. Shape: cuneiform, Color (dorsally): unicolored. HEAD.

Vertex. Outline: markedly protruding head outline, Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate. Eyes. Size: subequal to half width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Sides (modification): sinuate before posterior angles, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: acute, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, Lateral impressions (width): narrow. Prehumerus. Development: carinal, Shape: arcuate, Extent: to 1/2 of pronotal length, Anterior end: adjoining to lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin, Arc: obvious. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: cuspidate, Number of cusps or spines: 2, Position of dominant projection: sutural margin. Pubescence. Color: bicolored, Character: with patches or spots of denser pubescence, Extent: entire ornamental with indication of stripes. STERNUM. Prosternal lobe. Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): narrow. Prosternal process. Shape: slightly dilated, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: impressed, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4. GENITALIA. Ovipositor. Shape: markedly elongate.

Variability. This species is known only from the female holotype.

Diagnosis. By having bicuspidate elytral apices, A. mimicus resembles species related to A. albogaster Deyrolle, 1864 . It differs by the markedly longer pronotum when compared to the elytra, by the rough sculpture of the head and pronotum, and by the camouflaging pattern of the elytral pubescence.

Type material. Type locality: Laos, Louang Namtha province, Namtha—Muang Sing, 21°09'N, 101°19'E, altitude 900–1200 m. Type specimens. Holotype ♀ ( EJCB): “ Laos, Louang Namtha pr., 21°09'N, 101°19'E, Namtha—Muang Sing, 5–31.v.1997, 900– 1200 m, Vit Kubáň leg.”.

Distribution. LAOS: Louang Namtha. Etymology. The specific name mimicus (mimic) is the Latin adjective referring to the camouflage-like appearance of this species.

Figures

FIGURES 4A–4C. Holotypes of Agrilus, habitus in dorsal view. 4A, A. mimicus sp. nov. (5.1 mm); 4B, A. zim sp. nov. (5.2 mm); 4C, A. titi sp. nov. (4.3 mm).